body {
    font-family: " Helvetica","Arial", serif;
    color: #333;
    background-color: #ccc;
    margin: 1em 10% ;
}
h1 {
    color: #333;
    background-color: transparent;
}
a {
    color: #333;
    background-color: transparent;
    font-weight: bold;
    text-decoration: none;
}
ul{
    padding : 0 ;
}

li {
    float: left;
    padding: 1em;
    list-style: none;
}
img {
    display :block;
    clear :both;
}